Road plane



April 13 1926.

. I... LAMOREAUX ET AL ROAD PLANE Filed May 5, 1920 IeaZZamormws FiaaQzW/Uaa 67' maria Patented Apr. 13, 1926 UNIJTED- STA res I I 1,589,142 PATENT,"OFFICE;

LEAL LAMOREAUXV m 'BALPB J; 'Bo oMER; or s1; PAUL, MINNESOTA.

' ROAD PLANE.

A pplication filed may a, 1920. Serial No. states. '7

To aZZ whom it 122 11 concern:

Be it known that We, LEAL LAMQREAUX and RALP J. BOOMER, citizens ofthe United States, residing at St. Paul,=in the county of- Ramsey and State of Minnesota, have invented a new and useful Improve ment in Road Planes, of which the following is a specification. I

Our invention relates to road planes, the,

primary object of which; is toworkthesurface of a road true and smooth "tovaccorjnmodate, in 'the most practical. manner, the travel vover the samei' Inithisday of de:

velopment of good roads it is very desirable to haveroad workingmechanism to accomplish certain purposes most. effectively. in the shortest time, and owing to the extent of trafiic of motor vehicles at the present time over practically allroads, a road plane which is adapted to be easily operated is in great demand; 1 1

Our road plane is arranged -sothat the component of forces tendingtoforce rotation about the hitch ring is exactly balanced by one of the blades torun in a straight line. Affeature ofprimary importance inour planesis in means so arranged as to cause the removal of pro ect1onfs 1n the road. coincidal; with spreading loose material into the depressions 'most blade, while a second bladepicksupj this loose material and spreads itgoveri the I surface of the road, tendingto filllany; depressions and crushing and packing loose f and packing the loose materialin the depressions, while a trowellingand' finished effect is accomplished bytherearend of the plane. As the promoting portionsofthe road are cut awayby the-,foremost blade of our plane, the loose material is carried back and spilled aroundtheend-of the forematerial in the depressions, whilethe third blade of the plane picks up the material spilled around the end of the second blade and acts, with the first blade as a cutter, and also tends to pack and, distributeany loose material passing along theangle ofthe blade, while the trowel end of the plane performs to a large degree the eifect of a roller or smoothing element to give a finish tothe road. V v a V I a In the drawings forming part of this specification: I i t x I Figure 1 is a plan'view of our road plane. Figure 2 is a side elevation of the same.

ithe" forin of channel irons. blade15'is set obliquely in relation to the forward endfof the plane A and rigidly att ache d, ina suitable manner to the. beam members 10.- The second blade 16 extends cause thejplane to a 80. I

which constitute lithe main supporting'pon' tion or the body of the plane A. The forward endof :theplane is connected by upper :a'nd' lower channel members ll and 12, respectively, which extend transversely across the forward end of the beams. 10.

A suitable hitch B is connected to the forward, end; ofthe plane A and is provided w th, connecting rods 13, "which converge 1 toward .eachother and are connected by the hitch ring" =14, The-ringglaisconnected any suitable manner, not illustrated, to a tractor or other meansfor pulling the plane.

1 Theblades of'our plane are preferably in The. forward obliquely across in the opposite direction to the oblique angle of the blade 15 and .is

similar manner as the blade 15, while a third blade 17 extends obliquely across the plane "'Ajandfis secured similarly as the otherto the beam members 10, extending in an opposite angle to the blade 16. The road surface is workedtoward the beyond the; rear'end 19 ofthe first blade from theside of the plane A to catch the material" spilled around theend 18 and carry it along the blade 16 to the other side of the plane A, While the; end 20 of the blade 17 projects beyond the end 21 of the blade 16 so that the blade 17 will pick up any material {which maybe spilled .connected tot the-beam members 10 .in a

around the end 21 of the blade 16 and'tend to carry it along-the edge of the blade17;

This construction and arrangement of the blades 15, 161ancl 17 tends. to carry the loose material picked tip-by the blades backand forthin' a' z gzag manner in the direction of the arrows, as illustrated in Flgure'l, distributing the loose material to the depressions'in the road coincided with the removal of, projections, and packing the loose material in the depressions by the lower leg 22 of the channel members. The lower leg 22 of the channel members engages fiat against the surface of the road. The upper legs'23 of each of the channel members contact and are secured to the beam members 10, while suitable braces 24: hold the body of the channel members extending perpendicularly from the lower edge of the beam members 10. The lower forward edge '25 of the channel members 15, 16 and 17 "is sufficiently sharp .to form a cutting edge for the "channels so 'as to remove projections, while the legs 22 of each of the channels tend to pack any loose material which may slide beneath the same onto the road.

The channels 15 and 17 tend to form the cutters of the plane A and the channel 16 distributes and packs the loose material. The lower edges or legs 22 of each of the blades extend in the same plane, thus in swing a true surface to the road over which the plane is drawn. The effect of the legs .22 of the plane in removing and crushing the uneven surface of the road is very effective, and of a material advantage, while the peculiar arrangement of the obliquely set "blades so as to carry loose material in a zigzag manner tends to very quickly and effectively true the surface of a road.

The lower sharp edge 25 of the blades may be protected by an adjustable cutting member 26, which is connected by suitable bolts 27 which engage in the slot 28 of the member 26 so that the lower edge 29 of the member 26 can be adjusted to act as a cutting member directly adjacent to the edge 25. This constructionis adapted to take up the wear and protect the edge 25 of the blades 15, 16 and 17 if it is desired to use the same on the blades.

A trowelling blade 30 extends (transversely across the rear end of the plane and is con nected to the rear ends of the beams 10 by suitable braces or brackets 31. The trowelling blade 30 is formed of a channel iron member, the body of which extends at a slight angle in relation to the road, While the outer ends 32 of the blade extend on either side of the plane A, beyond the ends of the blades 15, 16 and 17. The end 34 of the blade 17 may spill a slight amount of material toward the trowel 30 as it is obvious that by the time the material is carried from the blade 15 to the blade 17 most of the loose material will be packed and distributed evenly over and into the depressions in the road, allowing only a small amount of loose material to be carried back .to the trowel '80. The trowel or smoother 30 prevents the formation of a shoulder and projects so that it will lap the center of the road and in working material under this blade the surface is packed to the extent comparable with the work of a roller. The angle braces 31 can be adjusted :to hold the trowel blade 30 in'anysuitable angle in relation to the road.

Our road plane is to be compared to a certain extent with the laying of a concrete floor, the material of which is struck off with the straight edge, but a trowel is used to finish the surface, because the straightedge leaves the surface porous and uneven. In this same manner the blades of our plane perform the functions of straight edges, while the lower legs 22 of the blades act as trowe'ls to crush and pack the loose material into depressions in the road to give a smooth effect to the same, while the trowel blade puts the finishing touches on the road sur face, all with a once-over operation. Therefore, our road plane accomplishes in a short time the effect of a true surface for a road over which it is drawn.

In accordance with the patent statutes we have described the principles of operation of our invention, together with the apparatus which we now consider to represent the best embodiment thereof, but we'desire to have it understood that the construction shown is only illustrative and that the invention can be carried out by other means and applied to uses other than those above set forth within the scope of the 'followingclaims:

We claim:

1. A road plane including a frame, a number ofchannel shaped zigzag packing cutters arranged on said frame adapted to discharge from one to the other and a transverse trowel positioned across said frame at the extreme end thereof in transverse re lation to said frame, said trowel extending outwardly beyond the'ends of all of said zigzag cutter members.

2. A road plane, comprising a pair of "beam members, channel shaped iron blades obliquely and zigzag-1y attached in relation to each other to said beam members with the legs of said angle iron blade members which engage 'the'road extending in the same plane with "the road and a trowelling blade fixed rigidly to the rear end of said beam members against movement.

3. Airoad plane comprising a frame, a number of channel shaped zigzag packing cutters arranged in inclined relation to one another upon said frame, said blades being arranged with the endof each blade in close proximi ty to and discharging to the beginning of the succeeding blade and-atrowel member secured to the end of'said frame, said trowel member being arranged in inclined relation to the ground and of a length to extend on either side of the ends of said zigzag cut- "ters.

4. A road plane comprising a longitudinally extending frame, a series of channel ner to said frame, to discharge theground verse trowel positioned across said frame at the extreme end thereof and extending outwardly beyond the ends of all, of said zigzag members.

5. A. road plane comprising a longitudinal frame member, a series of channel shaped packing member, said blades being arranged in inclined relation to one another with the end blades supported on said frame of each blade discharging to the' beginning of the succeeding blade and a trowel member secured at right angles to said frame immediately at the rear of said last named succeeding blade adapted toreceive the earth discharged, tl1erefrom, 'said trowel member being posit1oned 1n 1ncl1ned relation to the road and having its lowermost edge lying substantially in the same plane as the cutting edges of said cutters, said trowel member extending outwardly beyond the sides of-said plane and beyond the ends of all of said cutting members.

LEAL LAMOREAUX. RALPH J, BOOMER. 

